In a country whose people have just been successfully persuaded of their superiority and the justification for military expansion by the fiery speeches of a dictator, the bacillus of a highly destructive form of leprosy has spread. It is called morbus Tshengi, or popularly „white disease“. The only one who has developed an effective cure for it is a physician of the poor named Galén. But he refuses to reveal the secret of his cure as long as the powerful destroy human lives through wars.